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प्रश्न
What do you mean by the term dispersion?
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उत्तर
The splitting or breaking up of the white light into its constituent colours as it passes through a refracting medium such as prism is known as dispersion
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संबंधित प्रश्न
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
Name the kind of mirror used to obtain:
A virtual and enlarged image
A real and enlarged image can be obtained by using a
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
Define the term Centre of curvature.
A shopkeeper wanted to fix a mirror which will give a maximum view of his shop. What type of mirror should he use? Give reason.
